ICU-23321 Rename sets/maps to SETS/MAPS in CharacterProperties (static final convention)

Author: jabagawee

icu4j/main/core/src/main/java/com/ibm/icu/lang/CharacterProperties.java

@@ -25,9 +25,9 @@
 public final class CharacterProperties {
     private CharacterProperties() {} // all-static
 
-    private static final AtomicReferenceArray<UnicodeSet> sets =
+    private static final AtomicReferenceArray<UnicodeSet> SETS =
             new AtomicReferenceArray<>(UProperty.BINARY_LIMIT);
-    private static final AtomicReferenceArray<CodePointMap> maps =
+    private static final AtomicReferenceArray<CodePointMap> MAPS =
             new AtomicReferenceArray<>(UProperty.INT_LIMIT - UProperty.INT_START);
 
     private static UnicodeSet makeSet(int property) {
@@ -130,12 +130,12 @@ public static final UnicodeSet getBinaryPropertySet(int property) {
             throw new IllegalArgumentException(
                     "" + property + " is not a constant for a UProperty binary property");
         }
-        UnicodeSet set = sets.get(property);
+        UnicodeSet set = SETS.get(property);
         if (set == null) {
             set = makeSet(property);
             // Race is benign: frozen UnicodeSet is immutable, duplicate computation is harmless
-            if (!sets.compareAndSet(property, null, set)) {
-                set = sets.get(property);
+            if (!SETS.compareAndSet(property, null, set)) {
+                set = SETS.get(property);
             }
         }
         return set;
@@ -163,12 +163,12 @@ public static final CodePointMap getIntPropertyMap(int property) {
                     "" + property + " is not a constant for a UProperty int property");
         }
         int idx = property - UProperty.INT_START;
-        CodePointMap map = maps.get(idx);
+        CodePointMap map = MAPS.get(idx);
         if (map == null) {
             map = makeMap(property);
             // Race is benign: CodePointMap is immutable, duplicate computation is harmless
-            if (!maps.compareAndSet(idx, null, map)) {
-                map = maps.get(idx);
+            if (!MAPS.compareAndSet(idx, null, map)) {
+                map = MAPS.get(idx);
             }
         }
         return map;